EP 0356174 B1 19950315 - Reproducing apparatus for charge latent image recording medium.
Title (en)
Reproducing apparatus for charge latent image recording medium.
Title (de)
Wiedergabegerät für ein Ladungslatentbildaufzeichnungsmedium.
Title (fr)
Appareil de reproduction pour un support d'enregistrement à image électrostatique latente.
Publication
Application
Priority
- JP 20577188 A 19880819
- JP 24809188 A 19880930
Abstract (en)
[origin: EP0356174A2] A reproducing apparatus which reproduces a charge latent image recorded in a recording medium. The apparatus has an electromagnetic radiation source, an optical system for leading an electromagnetic radiation ray emitted from the electromagnetic radiation source in a direction toward a recording medium on which an object information to be read is prerecorded as a charge latent image, and a read head arranged closely facing to the recording medium and arranged in series in a travelling path of the electromagnetic radiation ray. The read head is of a multilayer structure comprising a support base plate, a photo modulation material layer for generating a mode modulation of said electromagnetic radiation ray which passes the photo modulation material layer therethrough in response to intensity of an electric field by said charge latent image, and an electrode for applying a predetermined electric field to said photo modulation layer, and for allowing to receive the electromagnetic radiation ray in a read wavelength range and transmit thereof to the photo modulation layer, an output surface facing to a processor for emitting thereto the electromagnetic ray having passed through the electrode and the photo modulation layer, said processor processing the electromagnetic ray modulated by going through the photo modulation material layer and outputted from the output surface.
IPC 1-7
IPC 8 full level
CPC (source: EP KR US)
G11B 7/00 (2013.01 - KR); G11B 9/08 (2013.01 - EP US); H01J 29/36 (2013.01 - KR); H04N 5/30 (2013.01 - EP KR US)
Citation (examination)
- EP 0348982 A2 19900103 - VICTOR COMPANY OF JAPAN [JP]
- APPLIED OPTICS vol. 18, no. 12, June 1979. pages 1895-1899, New York, US; S. JOST et al.: "Temporal measurements in the spatial frequency spectrum of liquid crystal image transducers"
- PATENT ABSTRACTS OF JAPAN vol . 6, no. 238 (E-144)(1116), 26 November 1982; & JP-A-57140079
- PATENT ABSTRACTS OF JAPAN vol. 6 no. 265 (P-165), 3 March 1981; & JP-A-57158834
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0356174 A2 19900228; EP 0356174 A3 19900808; EP 0356174 B1 19950315; DE 68921686 D1 19950420; DE 68921686 T2 19950727; KR 900003953 A 19900327; KR 920008475 B1 19920930; US 4945423 A 19900731
DOCDB simple family (application)
EP 89308422 A 19890818; DE 68921686 T 19890818; KR 890011818 A 19890819; US 39620389 A 19890821